REX Advisers and Osprey Funds have filed a proposal with the U.S. Securities and Exchange Commission (SEC) to launch the REX-Osprey ADA + Staking ETF. This would be the first exchange-traded fund in the U.S. linked to Cardano (ADA) with staking capabilities. The ETF aims to track ADA's performance, reinvesting staking rewards after fees. At least 80% of the fund's assets will be invested in Cardano or related products, including foreign exchange-traded products (ETPs). A Cayman-based subsidiary is included in the proposal to align with U.S. regulatory requirements. The SEC will review the application to assess its compliance with registration standards.